Buying a new pair of Doc Martens can be exciting, but the biggest question most buyers face is: “Should I do Doc Martens size up or down?” The short answer is this: Doc Martens generally run true to size, but they don’t come in half sizes. If you’re between sizes, it’s usually best to size down, since the leather stretches as you break them in. However, the right choice also depends on the specific style—boots, sandals, or Mary Janes—since some run larger or narrower than others.
Let’s break down exactly how to decide whether you should size up or down for different types of Docs, with tips from sizing charts and real user experiences.
Why Sizing Matters So Much With Doc Martens
The Nature of Doc Martens Footwear
Doc Martens are built with stiff, durable leather designed to last for years. While this makes them strong, it also means they take time to break in. A poorly chosen size can leave you battling blisters, tightness, or slipping heels during the adjustment period.
No Half Sizes Available
One key detail: Doc Martens do not offer half sizes. If your feet fall between sizes, you’ll have to choose either the nearest full size up or down. This is where confusion begins—and why knowing your options matters.
Doc Martens Size Up or Down: General Rule
Should You Size Up?
Sizing up is best if:
- Your feet are wider than average
- You plan to wear very thick socks inside your Docs
- You are buying a model that runs small
Should You Size Down?
Sizing down is best if:
- You’re between sizes and don’t want heel slippage
- You’re buying sandals or shoes with an open fit
- You’re purchasing a style known to run large
👉 In most cases, if you’re a half size, sizing down is recommended since the leather stretches with time.
Doc Martens Size Guide by Style
Different Doc Martens styles fit differently. Here’s how to choose:
Doc Marten Boots Size Up or Down?
Classic boots, like the 1460 8-eyelet, usually run true to size, but many wearers who are half-size go down to avoid excess room. The stiff leather softens and molds over time, so starting snug is better than too loose.
Doc Marten Sandals Size Up or Down?
Sandals, such as the Blaire or Voss models, often run a little large. If you’re between sizes, sizing down is recommended, as loose-fitting sandals can cause rubbing and discomfort.
Doc Marten Lombardo Size Up or Down?
The Lombardo line tends to run slightly bigger. If you fall between sizes, it’s best to go down for a secure fit.
Should I Size Up or Down for Doc Martens Mary Janes?
Mary Janes have a more structured fit with straps across the instep. They often run large, so if you’re between sizes, go down to avoid slipping when you walk.
Doc Marten Size Chart:
Before making a purchase, always check your measurements against the brand’s official chart. Here’s a quick reference:
| U.S MEN | U.S WOMEN | U.K | EUR | JP | INCHES |
| 4 | 5 | 3 | 36 | 22 | 9.35″ |
| 5 | 6 | 4 | 37 | 23 | 9.68″ |
| 6 | 7 | 5 | 38 | 23.5 | 10.35″ |
| 7 | 8 | 6 | 39 | 24.5 | 10.68″ |
| 8 | 9 | 7 | 41 | 25.5 | 11.02″ |
| 9 | 10 | 8 | 42 | 26 | 11.34″ |
| 10 | 11 | 9 | 43 | 27 | 11.69″ |
| 11 | 12 | 10 | 45 | 28 | 12.03″ |
| 12 | 11 | 46 | 29 | 12.36″ | |
| 13 | 12 | 47 | 29.5 | 12.70″ | |
| 14 | 13 | 48 | 13.03″ | ||
| 15 | 14 | 49.5 | 13.36″ | ||
| 16 | 15 | 51 |
Key Things to Remember Before Buying
Measure Your Feet Correctly
- Measure in the afternoon when feet are at their largest.
- Wear socks similar to what you’ll wear with your Docs.
- Measure heel-to-toe length and compare with the size chart.
Break-in Period Considerations
- Expect tightness for the first 2–3 weeks.
- The leather stretches to fit your foot shape.
- Avoid sizing up too much just to skip the break-in stage—it often leads to slipping and blisters.
Width Issues vs. Length Issues
- Sizing up or down only changes length, not width.
- If your issue is wide feet, consider insoles, stretchers, or a professional cobbler instead of just sizing up.
FAQs:
Do Doc Martens run big or small?
Most Doc Martens run true to size, but since they don’t come in half sizes, people in between sizes often need to size down. Some styles, like sandals and Mary Janes, tend to run slightly big.
Do Doc Martens stretch over time?
Yes. The leather is stiff at first, but after the break-in period (2–3 weeks), it softens and molds to the shape of your feet. This natural stretch is why many people prefer starting with a snug fit rather than sizing up.
Should I size up or down for Doc Martens if I have wide feet?
If you have wide feet, sizing up can provide more comfort. However, keep in mind that sizing up changes the length, not the width. In this case, using a shoe stretcher or consulting a cobbler may be a better solution than just sizing up.
Final Words
So, should you size up or down for Doc Martens?
- For boots → true to size, size down if in between.
- For sandals → usually size down.
- For Lombardo → size down if in between.
- For Mary Janes → size down for a snug fit.
When in doubt, use the Doc Marten size chart and measure your feet carefully. Remember, the leather softens with wear, so it’s better to start slightly snug than risk a loose, uncomfortable fit.
With the right choice, your Docs will not only look iconic but also feel like they were made just for you.
